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Can diffusion weighting replace gadolinium enhancement in magnetic resonance enterography for inflammatory bowel disease in children?
- Source :
-
Pediatric Radiology . Sep2018, Vol. 48 Issue 10, p1432-1440. 9p. 3 Black and White Photographs, 4 Charts. - Publication Year :
- 2018
-
Abstract
- <bold>Background: </bold>Contrast-enhanced MRI is often used for diagnosis and follow-up of children with inflammatory bowel disease.<bold>Objective: </bold>To compare the accuracy of diffusion-weighted MRI (DWI) to contrast-enhanced MRI in children with known or suspected inflammatory bowel disease.<bold>Materials and Methods: </bold>This retrospective, consecutive study included 55 children. We used ileo-colonoscopy and histology as the reference standard from the terminal ileum to the rectum, and contrast-enhanced MRI as the reference standard proximal to the terminal ileum. DWI and contrast-enhanced MRI sequences were independently reviewed and compared per patient and per segment to these reference standards and to the follow-up for each child.<bold>Results: </bold>We obtained endoscopic data for 340/385 colonic and ileal segments (88%). The rate of agreement per segment between DWI and endoscopy was 64%, and the rate of agreement between contrast-enhanced MRI and endoscopy was 59%. Per patient, sensitivity and specificity of bowel wall abnormalities as compared to the endoscopy were 87% and 100% for DWI, and 70% and 100% for contrast-enhanced MRI, respectively. Positive and negative predictive values were, respectively, 100% and 57% for DWI, and 96% and 41% for contrast-enhanced MRI. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of DWI compare to contrast-enhanced MRI in the segments proximal to the terminal ileum were 90%, 98%, 90%, 98% and 96%, respectively.<bold>Conclusion: </bold>The diagnostic performance of DWI is competitive to that of contrast-enhanced MRI in children with known or suspected inflammatory bowel disease. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03010449
- Volume :
- 48
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Pediatric Radiology
- Publication Type :
- Academic Journal
- Accession number :
- 131319816
- Full Text :
- https://doi.org/10.1007/s00247-018-4169-x